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anlyl2014
大吉大利
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12樓  發(fā)表于: 28天前
MODBUS_RTU通訊，是主站發(fā)命令，從站回應的方式通訊，FX3U要外掛一個(gè)FX3U_485_MB的模塊才能用ADPRW指令，只能掛一塊，所以，不用區別哪個(gè)串口，而指令中的站號，是指讀或寫(xiě)從站的，當然可以有很多個(gè)不同站號。
活到老，學(xué)到老！
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壓縮包用WINRAR打開(kāi)，沒(méi)密碼
hexiangjiang
xiangjiang
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13樓  發(fā)表于: 27天前
485BP可以用同一根線(xiàn)用與PLC與PLC通訊還可以進(jìn)行RS通訊嗎
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